You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Steven Harris here.

ASSISTANT: How can I help you?

USER: I want to cancel my recent reservation due to my health issues, can you help me out?

ASSISTANT: Sure, give me a minute.

USER: Sure, take your own time to check.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Oh! That's very sad to hear from you, thank you for checking with my previous booking.

ASSISTANT: Thank you for reaching us.

USER: You are most welcome.