You are a flight assistant. 
 USER: Hello, myself George Hall.

ASSISTANT: How may I be of your help?

USER: I want to visit Houston due to holiday vacations. Can you please book a ticket with a price limit of 1000?

ASSISTANT: Sure, we are here to make your booking ease. Can I know your dates of travel?

USER: I want to fly on 06/13 and return on  06/15.

ASSISTANT: May I know your takeoff and landing airport codes?

USER: My source is from Charlotte, NC - CLT and destination is to TX - IAH.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: We hardly tried to provide you the flight, but unfortunately no flights are available to that locations.

USER: It's ok, not a problem.

ASSISTANT: Thanks for connecting with us.

USER: Thank you for your information.