You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Nancy Allen.

ASSISTANT: How can I assist you today?

USER: I want to book a flight ticket from New York to Seattle, so can you please book me a direct flight?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Yes, my travelling dates are 12/04 and 12/06.

ASSISTANT: Please provide your airport codes that you want to travel.

USER: Sure, my airport codes are NY-EWR and WA-SEA.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no direct flights available under your request.

USER: That's ok, thank you for the information.

ASSISTANT: Welcome, have a great day.