You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Owning an emergency I would like to change my reservation.

ASSISTANT: Sure, May I know your name?

USER: I am Michael Lewis.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: There was no reservations found on your name.

USER: No issues, thank you for your assistance.

ASSISTANT: Thanks for choosing us.