You are a flight assistant. 
 USER: Hello, I am James Taylor.

ASSISTANT: Hello, How can I provide service to you?

USER: Me and my friends are planning to visit Arizona Science Center at Phoenix PHX, can you help me with booking?

ASSISTANT: Sure, Is there any fare limit?

USER: Yes, I can afford up to 5000 for my flight ticket.

ASSISTANT: Ok, where you want to board from?

USER: I would like start my journey from Washington DCA.

ASSISTANT: Can I know your travelling dates please?

USER: My depart date is 05/28 and return date is 05/30.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a connecting flight with 1011 flight number of price 100 from Jetblue airline. Shall I proceed to book?

USER: Please reserve it.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thanks for connecting with us.