You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Debra Collins, want to travel from JFK to IAH. Please help me in booking my ticket.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 12/23 to 12/25.

ASSISTANT: In Delta airline, there is a flight with 1 connection and fare is 200. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Most welcome.