You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I looking for a flight from LGA to DEN, can you help me in booking a flight?

ASSISTANT: Sure, I will help you in booking, can you please provide me your travelling dates?

USER: My preferable travel dates are from 12/14 till 12/16.

ASSISTANT: Ok, may I know your name?

USER: Myself Kimberly Martin.

ASSISTANT: Sorry Martin, there is no flight found for you.

USER: That's ok, no problem.

ASSISTANT: Sorry for inconvenience.

USER: Ok, thank you for your information.

ASSISTANT: Welcome.