You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I have done my booking last week with my name Jennifer Collins by your agency but now I am not able to travel due to my ill health. Can you help me to cancel my reservation?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, I will be waiting for your reply.

ASSISTANT: Sorry, I did not found any reservation on your name.

USER: Not an issue with that, it might be cancelled by my manager. Anyways thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.