You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself David King. I am looking to book a flight ticket from LGA to SEA. Can you please help me with that?

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My trip dates are from 06/05 till 06/07.

ASSISTANT: Ok, please give me a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, no flights are available on your route.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day. Thank you for choosing us.