You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, I am willing to help you. Please share your name.

USER: My name is Joseph Miller.

ASSISTANT: Wait a minute please.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting,  sorry no reservation  found on your name.

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

ASSISTANT: Thank you for choosing us, have a good day.