Hello.
user
Hello. How may I help you today?
assistant
I want to depart in the evening to meet my cousin, can you help me with booking?
user
Sure, may I know your airport codes?
assistant
My airport codes are OAK to IAD.
user
Sure, may I know your travelling dates?
assistant
My travelling dates are Apr 09 and Apr 11.
user
On which name shall I reserve flight ticket?
assistant
I am William Lee.
user
 Sorry, there are no flights found on given dates.
assistant
Ok, no problem.
user
Thank you for reaching us.
assistant
Thank you for your information.
user