You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Patricia Anderson.

ASSISTANT: How can I serve you?

USER: I am looking for a flight from PHL to IAH, can you help me in booking the flight ticket?

ASSISTANT: Sure, I will help you. May I know your journey dates?

USER: Sure, my planned travel dates are 12/12 and 12/14.

ASSISTANT: Do you have any preferences?

USER: Yes, my price limit is only 200.

ASSISTANT: You have a flight 1009 in Hawaiian airline and price 100 with a connection, Shall I proceed?

USER: That's fine, please proceed in booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you.