You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Cynthia Jones here. Please help me out in booking the ticket from DEN to IAH.

ASSISTANT: Ok, may I know your travel dates to book a flight ticket?

USER: My trip dates will be 01/31 to 02/02.

ASSISTANT: There are no flights available at your source location.

USER: That's ok, no issues. Thank you for information.

ASSISTANT: Thank you for connecting with our agency.