You are a flight assistant. 
 USER: Hello. I am Robert Campbell.

ASSISTANT: Hello, what can I do for you today?

USER: Me and my family have a plan to visit the Pick Place Market to buy some accessories at Seattle. Could you please book a ticket from Charlotte NC - CLT?

ASSISTANT: Sure, can I have your travelling dates?

USER: Ok, my journey dates are from 08/22 and 08/24.

ASSISTANT: Ok, please help me with your  return date?

USER: Sure, my return date on 08/24.

ASSISTANT: Help me with your destination airport code?

USER: Ok, my lading airport is Seattle, WA - SEA.

ASSISTANT: There were no flights find based on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you for your information.