You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Sarah Martin.

ASSISTANT: How can I help you?

USER: Will you help me in booking me a plane from DFW to ATL?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 01/09 - 01/11.

ASSISTANT: Do you have any preferences?

USER: I can spend up to 200.

ASSISTANT: There is a flight 1029 in UA airline and price 100 with a connection. Shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.