You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your help?

USER: Owing to an emergency, I want to cancel my recent reservation.

ASSISTANT: Sure, I am happy to assist you with this. Could you please share your name to check the reservation list?

USER: My name is Edward Lee.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry there is no reservation found by this name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for availing us.