You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Owing to an emergency, I want to cancel recent reservation. Can you help me?

ASSISTANT: May I know your name please to check the status of your reservation?

USER: Yes, I am Rachel King.

ASSISTANT: Thank you. Please stay online for a while, I will check your reservation status and let you know.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no reservation matching with your name in our portal.

USER: Ok, not a problem. Thank you for your valuable information.

ASSISTANT: Thank you for reaching us.