You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Frank Hall.

ASSISTANT: How can I help you?

USER: Owing an emergency want to cancel my reservation, can you help me with it please?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: There is no reservation found under your name to do cancellation.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you so much for choosing us.