You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Susan Hill here.

ASSISTANT: How can I assist you today?

USER: I want to cancel my ticket as most of my friends are interested in that trip. Can you cancel my booking?

ASSISTANT: Sure, I can help you with that. Please allow me a moment to check for the previous reservation.

USER: Yes, take your time.

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

USER: Ok, it's alright. No problem, thank you for your quick response in searching.

ASSISTANT: You are welcome. Thank you for contacting us.

USER: Thank you.