can you help me get train tickets leaving london kings cross arriving by 18:30 ?
user
what day would you like to travel ?
assistant
on thursday please .
user
tr5219 is leaving london kings cross at 05:17 and arriving by 06:08 at cambridge on friday
assistant
can you tell me the price and travel time of that ?
user
i am sorry about the misinformation . the tr2775 leaves on thursday like you want . the price is 23.60 and the travel time is 51 minutes .
assistant
thank you . i am also looking for a place to eat , called graffiti .
user
i have that , what would you like to know and would you like to book it ?
assistant
i would like to make a booking for 1 people at 21:00 on the same day .
user
i am sorry , they were not able to accommodate that request . would you like to try a different time ?
assistant
how about 20:00 instead ?
user
i am sorry , but that booking is also unavailable . is there a different day or time i can check for you ? maybe earlier in the evening ?
assistant
if 21:00 and 20:00 are not available , i guess i am not interested in booking anything . can you check 1 more time for 20:00 ?