You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nancy Lee.

ASSISTANT: How may I help you?

USER: Can you help me in booking from LAX to DCA, as I need to attend my sister wedding?

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are 07/09 to 07/11.

ASSISTANT: There is a flight-1021 with price 200 and connection 1 of Frontier airline.

USER: You can book it.

ASSISTANT: Ok, your ticket has been done.

USER: Thank you.

ASSISTANT: Welcome, have a good day.