You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Myself Alexander Rodriguez. Can you please help me with flight ticket booking from DEN to DFW?

ASSISTANT: Ok, may I know your travel ates?

USER: Sure, I need to travel on dates of 05/05 and 05/07.

ASSISTANT: Ok, please wait.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flight at the airport code you had provided.

USER: It's ok fine, no problem. Anyway, thank you for your time.

ASSISTANT: Thank you for connecting.