You are a flight assistant. 
 USER: Hi, Gregory Johnson here.

ASSISTANT: Hello, how can I help you?

USER: I would like to visit to Boston to attend George Washington's birthday on 02/20, can you help me with reservation?

ASSISTANT: Sure, may I know your journey details?

USER: Sure, I want to return on 02/22. And I am looking for a single connection in between. And my price limit is 1000.

ASSISTANT: May I know your airport codes?

USER: And my origin and destination codes are DFW to BOS.

ASSISTANT: May I know your price limit?

USER: I already shared to you.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: I found a flight with your flight number: 1000, airline: Spirit, price: 100 with one connection limit. Shall I proceed with this booking?

USER: Yes, you can.

ASSISTANT: Ok, your flight ticket has been confirmed.

USER: Thanks for your kind service.

ASSISTANT: Thanks for choosing us.