You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Timothy Hall here.

ASSISTANT: How may I be your helping hand today?

USER: I want to cancel my recent reservation due to postpone of my exams. Can you help me in that?

ASSISTANT: Sure, I am here to help you. Please wait for few minutes.

USER: Thank you. Sure.

ASSISTANT: There is no recent reservation found on your name in our records.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for approaching us.