You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Owing to emergency I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, please mention your name to check your reservation details in our database.

USER: My name is Brandon Phillips.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry, I did not find any reservation by your name in our database.

USER: No problem, thank you for checking.

ASSISTANT: Thank you for reaching us.