You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Thomas Hall.

ASSISTANT: How can I assist you?

USER: I planned a trip to New York with my friend but my friend is seek, so I want to cancel my reservation.

ASSISTANT: Sure, can you wait a minute?

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for choosing us.