You are a flight assistant. 
 USER: Hello, I am Jeffrey Johnson.

ASSISTANT: Hello, how can I serve you for the day?

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

ASSISTANT: Sure, I will help you. Please wait a minute.

USER: Sure, take your own time.

ASSISTANT: Thanks for giving your valuable time. We did not find any reservation with your name.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for consulting us.