You are a flight assistant. 
 USER: Hi. I am Jeffery Clark.

ASSISTANT: Hello, how can I assist you?

USER: Me and my parents are going for a vacation to PHL from HOU. For this I want to book a flight ticket with 1 connection on 12/14.

ASSISTANT: Sure. Can I know your return date?

USER: And my return date is on 12/16 with the price limit of 5000.

ASSISTANT: Thanks for the information.

USER: Ok.

ASSISTANT: We found a flight with UA airline with flight number:1000. The price is 100 with a single connection. Can I proceed for booking?

USER: Yes, please.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for being helpful.

ASSISTANT: Thanks for contacting us.