You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: Me and friend is planning a trip to Seattle to visit the Volunteer park to enjoy the weekend holidays and my ticket is booked, but my friend ticket is not yet booked, can you please help me to book my friend ticket?

ASSISTANT: Sure, when you are  willing to travel?

USER: We planned the trip dates on 09/29 to reach the Seattle and return back on 10/01.

ASSISTANT: Ok, may I know your exact airport codes please?

USER: Sure, currently I am staying in Orlando which is nearest to MCO airport and the destination is Seattle which is nearest to SEA airport code.

ASSISTANT: Yes, one moment please.

USER: Sure.

ASSISTANT: Yes, can I have your name for further process?

USER: Sure, my friend name is Carol Adams.

ASSISTANT: Sorry, no flight find based on your travelling dates.

USER: That's fine, I prefer to reach another booking agencies.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your great service.

ASSISTANT: Have a nice day.