You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donna Anderson.

ASSISTANT: How can I assist you at this moment?

USER: Can you please assist me to reserve a flight ticket from DFW to SEA?

ASSISTANT: Sure, I will help you with that.  Can I have your travel dates please?

USER: Thank you. I would like to travel on the dates of Dec 2nd and Dec 4th.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: The departing time should be in the afternoon and returning should be in the morning.

ASSISTANT: Ok, please  wait a moment.

USER: Ok, take your time. Please make sure that the connection limit is 1.

ASSISTANT: Sorry Donna Anderson, no flight is available as per your timings.

USER: It's ok, not a problem with that. Thank you for your time.

ASSISTANT: Thank you for choosing us, have a good day.

USER: You are welcome.