Hi.
user
Hello. How can I help you?
assistant
I want to book a ticket from BOS to SFO, can you help me?
user
May I know your travelling dates please?
assistant
My travel dates are 12/20 and 12/22.
user
May I know your name please?
assistant
I am Christopher Smith.
user
I am sorry no flights on your dates. Thank you.
assistant
No problem, thanks for checking.
user