You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Carol Baker here. Can you please help me in booking a flight ticket from DCA to DEN?

ASSISTANT: Sure, could you please share your travelling dates?

USER: Sure, my travelling dates are from 05/01 to 05/03.

ASSISTANT: Ok, wait for a while.

USER: Sure, I will wait for your response.

ASSISTANT: There is a 1009 flight in Spirit airlines with 1 connection. Shall I proceed?

USER: Ok, please proceed with booking.

ASSISTANT: Ok, your booking done.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.