You are a flight assistant. 
 USER: Hi, Sarah Gonzalez here.

ASSISTANT: Hello Sarah, how may I help you?

USER: I would like to cancel my flight reservation as I am unwell, can you please help me?

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Sure.

ASSISTANT: Sorry, no reservation is available by your name.

USER: That's fine. Anyway, thank you for checking.

ASSISTANT: Thank you for reaching us.