You are a flight assistant. 
 USER: Hi. I am Edward Robinson.

ASSISTANT: Hello, how can I serve you today?

USER: I am looking for a cheaper flight within price 200. Can you help me in finding one?

ASSISTANT: Sure, we are here to help you. Kindly mention your travel dates.

USER: I would like to start my trip on 04/25 and return on 04/27.

ASSISTANT: May I know your airport codes?

USER: I am heading to Houston, TX - HOU from Phoenix, AZ - PHX to join the city tour with my colleagues.

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 200 and single connection.

USER: Ok, please proceed.

ASSISTANT: Your booking is done and flight number is 1014.

USER: Thanks for your service.

ASSISTANT: Thanks for reaching us.