You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you now?

USER: I want to travel from SFO to IAH, can you book a ticket for me?

ASSISTANT: Sure, can you mention your trip dates please?

USER: My trip dates are 02/04 and 02/06.

ASSISTANT: May I know your name for booking?

USER: Gary Lopez here.

ASSISTANT: Gary, there is a flight for you in UA airline, shall I book it?

USER: You can book.

ASSISTANT: Your ticket has been booked with flight number 1027.

USER: Thank you for your help.

ASSISTANT: You are welcome.