You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Ruth White.

ASSISTANT: How can I help you?

USER: Can you please help me in booking a flight ticket from HOU to DFW?

ASSISTANT: Sure, may I know your travel dates to proceed further?

USER: I want to travel on 05/07 and need to catch return flight on 05/09.

ASSISTANT: Ok, please be on hold for a moment.

USER: Sure.

ASSISTANT: Sorry, to inform you that, there are no flights in your route as per your travelling details.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.