You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I would like to meet my partner at Chicago, please help me in booking a ticket.

ASSISTANT: Sure, please mention your airport codes.

USER: My nearest airport codes are LAS and ORD.

ASSISTANT: Ok, let me know your trip dates too.

USER: My trip dates are 02/18 and 02/20.

ASSISTANT: May I know your name?

USER: My name is Donna Robinson.

ASSISTANT: Thanks for your response, there is a flight-1000 of JetBlue airline. Is it ok for you?

USER: Ok, please book my ticket.

ASSISTANT: Ok, your ticket has been done, have a happy journey.

USER: Thank you for your help.

ASSISTANT: Welcome.