You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am George Johnson, would like to fly from IAD to AUS. Can you help me to book a flight?

ASSISTANT: Sure, can I know the travel dates please?

USER: My journey starts from 03/14 to 03/16.

ASSISTANT: Ok, wait a moment please.

USER: Sure, my price limit is 200.

ASSISTANT: There is a flight in JetBlue airline with price 100.

USER: Proceed.

ASSISTANT: Your ticket has been booked with flight number 1000.

USER: Thank you for your help.

ASSISTANT: You are welcome.