You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Myself Patrick Edwards. I need to attend an interview in Detroit, can you please reserve flight ticket from SEA and DTW?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are Feb,05 and Feb,07.

ASSISTANT: Wait a moment please.

USER: Please take your time.

ASSISTANT: Patrick Edwards, there are no flights available in your route.

USER: That's ok, I will choose any other source to travel my destination.

ASSISTANT: Thank you for reaching us.

USER: It's ok.