You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Emma Harris. I want to book a connecting flight ticket from Houston, TX-HOU to Denver, CO-DEN.

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, my travelling dates are from 09/26 to 09/28.

ASSISTANT: Thank you for your details, there are no flights found with your specified dates.

USER: That's not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your kind information.