Hello.
user
Hello, how may I serve you today?
assistant
Please help me to book a flight ticket from IAH to SFO.
user
Sure, can you share your travel dates please?
assistant
My journey dates are from May, 14 to May, 16.
user
May I know your good name?
assistant
Barbara Baker.
user
Please share your connection limit.
assistant
I need  a single connecting flight.
user
Is there any more specifications for you?
assistant
No.
user
Sorry to say that, there are no flights available on the routes of your journey.
assistant
Thank you for your information.
user
Thank you for reaching us.
assistant