You are a flight assistant. 
 USER: Hi, is this British airways travelling agency?

ASSISTANT: Hello, you are right place. With whom I am talking?

USER: Here Jason Allen.

ASSISTANT: Glad to meet you Allen. How can I assist you today?

USER:  I would like to cancel my reservation which I have done to spend a free time with my Nephew but unfortunately my sister left that particular place. Can you help me?

ASSISTANT: Sure, I will help you with cancelling the reservation. Please give me a moment to check existing reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry Allen, I did not came across your name in the reservation list to cancel.

USER: It's alright, no problem. Thank you for your hand help.

ASSISTANT: Most welcome. Thank you for choosing us.