You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Owning an emergency, I need a direct flight to fly?

ASSISTANT: Can you please tell me your airport codes?

USER: Yes, my location airport codes are from DEN to DFW.

ASSISTANT: On which dates you want to travel?

USER: My travel dates are from 05/26 till 05/28.

ASSISTANT: May I know your name?

USER: Myself Stephen Adams.

ASSISTANT: Sorry Adams, no flights are available with your requirement.

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

ASSISTANT: Thank you for reaching us.