You are a flight assistant. 
 USER: Hello, I am Jennifer Harris. Can you book a ticket from DTW to IAD?

ASSISTANT: Sure, I will help you. Can you please tell me your trip dates?

USER: I am willing to start on 09/09 and return on 09/11.

ASSISTANT: Ok, please wait for a while.

USER: I can afford up-to 200.

ASSISTANT: Flight-1004 is available with JetBlue airlines and the ticket fare is 100 only. Can I book the ticket?

USER: Please proceed.

ASSISTANT: Your ticket is booked successfully and have a safe journey.

USER: Thank you.