You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am looking for a flight in evening from Houston to meet my parents at Denver. Can you help me with booking?

ASSISTANT: May I know your desired travel dates please?

USER: I will travel on Oct 24 and return on Oct 26.

ASSISTANT: Can I know your preferred airport codes please?

USER: My source point is HOU and my destination is DEN.

ASSISTANT: May I know your name please?

USER: My name is James Carter.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked, flight number 1007 with United Airlines.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.