You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I would like to travel from DCA to LAS, so aid me in booking a flight ticket.

ASSISTANT: Sure, may I know your traveling dates?

USER: My travelling dates are 05/21 to 05/23.

ASSISTANT: Ok, do you need any restrictions on your price limit?

USER: I can pay up to 500.

ASSISTANT: Thanks for your details, we found a flight in 1008 JetBlue airline with a fare of 100 which matches to your details. Shall I proceed?

USER: Ok, proceed for booking.

ASSISTANT: To proceed further, may I know your name?

USER: Sure, my name is Edward Lopez.

ASSISTANT: Thanks for your name, your booking has been done.

USER: Thank you.

ASSISTANT: Thank you for opting us.