You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Owing to an emergency I had request for this change reservation. Can you please help me to change an existing reservation?

ASSISTANT: Sure, May I know your good name please?

USER: My name is Ryan Miller.

ASSISTANT: Ok, wait.

USER: Sure.

ASSISTANT: Thanks for waiting there was no reservations found on your name.

USER: Not a problem.

ASSISTANT: Thanks for connecting us.

USER: Thanks for your kind information.