You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I lend a hand to?

USER: Can you help me in modification of my reservation as I have met with an accident?

ASSISTANT: Sure, I am willing to help you for this. May I know your name please?

USER: Thank you for your concern. My name is Betty Martinez.

ASSISTANT: Just a moment, let me check your reservation status in our records.

USER: Sure, go ahead and check it.

ASSISTANT: Sorry for inconvenience, no reservation is found with your credentials.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you very much for approaching our agency.