You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best serve you today?

USER: Please book a flight ticket on my name Robert Thompson, to reach Denver within fare 1000?

ASSISTANT: Sure, kindly mention your travelling dates?

USER: My starting date is 01/03, and my return date is 01/05.

ASSISTANT: What is the airport that you wish to board from and land at?

USER: I want to board from Houston, TX - IAH and landing at Denver, CO - DEN.

ASSISTANT: Thanks for providing details, no flights were found on your requested dates.

USER: That's ok, thanks for the information.

ASSISTANT: Thank you for choosing us.