You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I adders you?

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: To check the reservation list we need to know your name, can you please share me your name?

USER: My name is Gregory Walker.

ASSISTANT: Sorry, there is no reservation your name.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you.