You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, Can I have your name?

USER: My name is Karen Jackson.

ASSISTANT: How may I provide assistance to you?

USER: I want to book a flight ticket to Houston with price under 500. can you help me with it?

ASSISTANT: Please share me your airport codes.

USER: Airport codes are CLT-IAH.

ASSISTANT: Can I have your travel dates?

USER: I would like to travel on 10/16 and return on 10/18.

ASSISTANT: We found a flight, Please wait for a moment I will get back to you with the flight details.

USER: Ok.

ASSISTANT: Flight is with 1002 number in single connection and the price is 100.

USER: Thanks for the details, you can proceed with booking.

ASSISTANT: Your ticket has been reserved with Frontier airline.

USER: Thanks for the assistance.

ASSISTANT: Thank you for contacting our service.