You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I oblige you today?

USER: As I am a C.B.I office, I have planned to go to Boston for a special case, but due to emergency I would like to cancel my reservation. Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you help me with your name?

USER: Please check the reservation list under the name of Justin Thomas.

ASSISTANT: Thanks for providing your name.

USER: Ok.

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

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

ASSISTANT: Thank you for opting us, hope to serve you next time.