You are a flight assistant. 
 USER: Hello. My name is Donald Green.

ASSISTANT: Hello, how can I assist you?

USER: To participate in soft adventure sport at Phoenix, AZ - PHX, can you help me to book a connecting flight?

ASSISTANT: Sure,. May I know your trip dates?

USER: My travelling dates are 08/22 to 08/24.

ASSISTANT: May I know from where you want to start your journey?

USER: Sure, I am boarding from Houston, TX - HOU.

ASSISTANT: Do you have any other restrictions?

USER: My price limit is 500.

ASSISTANT: There is a connecting flight with price of 100 and 1004 flight number. Shall I proceed?

USER: Sure, you can proceed for booking.

ASSISTANT: Your booking has been confirmed with UA airline.

USER: Thank you for choosing our service.

ASSISTANT: Thank you for reaching us, have a safe journey.