You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: Karen Parker here.

ASSISTANT: Nice to meet you.

USER: I want to visit LAS. Can you check once is there any flight from DCA?

ASSISTANT: May I know your trip dates?

USER: 03/07 to 03/09.

ASSISTANT: There is a flight with 1010 in JetBlue airline. Can I proceed?

USER: That's great. Yes, you can proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for approaching us.