You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nancy Lee.

ASSISTANT: How may I help you today?

USER: Can you help me in booking the ticket from DCA to ORD?

ASSISTANT: Ok, sure I can you with that. Can you please tell me your travelling dates.

USER: My planning dates are from 07/05 to 07/07.

ASSISTANT: Here is a flight ticket with 100 fare and 1002 as flight number with Hawaiian airline. Shall I proceed with booking?

USER: That's great, please proceed.

ASSISTANT: Ok, Lee your ticket has been processed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.

USER: You are welcome.