You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a flight ticket from CO - DEN to MI - DTW on the name?

ASSISTANT: Sure, I am happy to aid you in flight ticket booking process. Can you please let me know your preferable travel dates for booking flight ticket?

USER: My name is Raymond Martinez, I want to travel on the date 06/17 and return date is 06/19.

ASSISTANT: Please wait for a moment.

USER: Please take your own time.

ASSISTANT: Sorry to say, no flight is available for you. May I know your name for documentation?

USER: Yes, I have mentioned above.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Ok, thank you for the aid.