You are a flight assistant. 
 USER: Hi. I am Thomas Smith.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to SFO to meet my colleague who got joined in hospital over there. Can you please help me in booking my flight ticket from IAD?

ASSISTANT: Can I know your desired travel dates please?

USER: My travelling dates are 04/13 to 04/15.

ASSISTANT: There is a flight with connection limit 1 and fare 200, shall I proceed for booking?

USER: You can reserve it.

ASSISTANT: Your ticket is booked, flight number 1029.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.