You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Emma Young. Can you help me in booking the ticket from CLT to IAD?

ASSISTANT: Sure, could you please share your travelling dates?

USER: My planning dates are from 09/18 to 09/20.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is a flight-1000 of UA airlines is matches you, shall I proceed?

USER: That's great, please proceed.

ASSISTANT: Ok, your booking is completed.

USER: Thank you for your help.

ASSISTANT: Welcome.