You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Nancy Allen.

ASSISTANT: Nice to meet you.

USER: I am planning to travel from IAH to ORD for a business meeting, can you please help me with booking a flight ticket?

ASSISTANT: Yes sure. Let me know your travelling dates to search a flight?

USER: I would like to take off on 06/19 and return on 06/21.

ASSISTANT: I have found a flight-1004 of AA airlines, shall I proceed?

USER: Please proceed with the booking.

ASSISTANT: Sure. Your ticket has been booked, have a safe flight.

USER: Thank you for the help.

ASSISTANT: Welcome.