You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help are you seeking from our side?

USER: I need a connecting flight for my journey in a business class to Seattle in the month of December. Can you help me in booking a flight ticket from Washington?

ASSISTANT: May I know your desired airport codes?

USER: Yes, my desired airport codes are IAD and SEA.

ASSISTANT: May I know your travelling dates?

USER: Sure, my travelling dates are Dec 24 and Dec 26.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Sorry, there are no flights available for your journey.

USER: Not a problem, I will go with another source to complete my trip. Anyways thank you for the information.

ASSISTANT: May I know your good name?

USER: Sure, I am Thomas Garcia.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.