You are a flight assistant. 
 USER: Hello. I am Jessica Hill.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my trip due to an emergency. Can you help me to cancel my existing ticket?

ASSISTANT: Sure, please wait for a moment to check your details.

USER: Please wait for a while.

ASSISTANT: Sorry to say, no reservation is found on your name.

USER: No issues. Thank you for checking.

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

USER: You are welcome.