You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Matthew Gonzalez. I want to book a flight ticket within 500. Can you help me?

ASSISTANT: Sure, kindly mention your travel dates.

USER: 05/15 and 05/17 are my travelling dates.

ASSISTANT: Could you please provide me your airport codes?

USER: HOU and CLT are my source and destination airport codes.

ASSISTANT: There is a flight with your requirement, airline is UA with price 100 and single connection.

USER:  That's Perfect, You can reserve it for me.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thanks for reaching us.