You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Lisa Mitchell.

ASSISTANT: How can I help you?

USER: We friends were planning to cancel the tour due to having some emergency work at the office. Will you help me in cancellation of the reservation?

ASSISTANT: Sure, I am willing to help you.

USER: Thank you.

ASSISTANT: Please wait a minute I will check the reservation status and get back to you.

USER: Sure.

ASSISTANT: Thanks for being patience, sorry to inform you that we did not find any reservation on your name.

USER: No problem.

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

USER: Thank you for your quick response.