am looking for a train , it should depart from cambridge and should go to ely
user
the train id is tr1709 and it leaves on friday
assistant
i need to travel on wednesday and get there by 17:15 .
user
trainid tr6745 leaves cambridge at 15:50 and arrives at ely at 16:07 . it s the last wednesday train .
assistant
can you give me the price ?
user
that train costs 4.40 pounds .
assistant
alright . i'll take it ! that train will be perfect .
user
ok , how many seats would you like to book ?
assistant
oh , i do not need to book now . i just need the information for reference . thank you . goodbye .