You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Brian Jackson here.

ASSISTANT: Jackson, how can I help you?

USER: I would like to cancel my recent reservation due to my son's health issues, can you help me out?

ASSISTANT: Sure, I will do that for you. Please wait for a moment.

USER: Ok, take your own time.

ASSISTANT: Jackson, I did not find any reservation under your name in our database.

USER: Oh! That's sad to know, thank you for checking anyways.

ASSISTANT: You are welcome and thank you for contacting us.

USER: You are most welcome.