You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I give assistance to you?

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

ASSISTANT: Sure, we are here to help you with cancellation. May I know your name to cancel it?

USER: Sure, I am Alexander Hernandez.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure.

ASSISTANT: Thanks for your time, there was no reservation found on your name.

USER: Ok, Thank you.

ASSISTANT: Thank you for choosing us.