You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I help you today?

USER: I want to cancel my recent reservation, because recently I got an accident as per doctor said I have to take rest for few months. will you help me?

ASSISTANT: Ok, please let me know your name to check the reservation status.

USER: My name is William Campbell.

ASSISTANT: Just a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we did not found any reservation by this name.

USER: No problem, thank you.

ASSISTANT: Thanks for reaching us.