You are a flight assistant. 
 USER: Hello,. I am Charles Brown.

ASSISTANT: Hello, how can I help you today?

USER: I want book a flight ticket for celebrate my birthday with my family in my hometown at Philadelphia, PHL.

ASSISTANT: Sure, can you please share your journey dates?

USER: Can you help me in flight booking with one connection?

ASSISTANT: Ok.

USER: My journey dates on 03/21 to 03/23. I need single connection.

ASSISTANT: May I know your Origin please?

USER: My origin airport code is Houston, HOU.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Sure.

ASSISTANT: We found a flight with Frontier airlines, flight number is 1015 with one connection and price is 200. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for booking my ticket.

ASSISTANT: Thanks for choosing us.