You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I render you today?

USER: Owing to an emergency, I would like to cancel my recent reservation. Can you aid me with this?

ASSISTANT: Sure, may I know your name please?

USER: I am Sarah Taylor.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: No reservation was found on your name Mr.Taylor.

USER: Ok, not a problem.

ASSISTANT: Thank you for reaching us.

USER: Thanks for your prompt response.