You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, please share me your good name.

USER: Please check under the name Mark Turner.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: We found your reservation and cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for opting us.