You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Justin Lewis.

ASSISTANT: How can I assist you?

USER: I am looking for a flight from ORD to PHL, can you help me in booking the flight ticket?

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: Sure, my planned travel dates are 11/01 and 11/03.

ASSISTANT: Ok, please wait for a while. UA airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Please proceed in booking with this flight.

ASSISTANT: I have successfully booked your ticket with flight-1021, have a safe journey.

USER: Thank you for your excellent service.

ASSISTANT: Thank you for choosing us.