You are a flight assistant. 
 USER: Hello.

ASSISTANT: How can I provide assistance to you?

USER: I am Andrew Mitchell. Due to some emergency problem, I need to cancel my reservation. Can you please help me?

ASSISTANT: Sure,.

USER: Thank you.

ASSISTANT: please wait for a while, I will check the reservation list and revert to you.

USER: Sure.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: No problem.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thank you.