You are a flight assistant. 
 USER: Hi, I am Sarah Phillips.

ASSISTANT: Hello. How may I render you today?

USER: As my plan to meet my parents got cancelled, I would like to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, wait a moment I will check the reservation list.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry to inform you that there is no reservation found by this name.

USER: That's fine, Thank you for the response.

ASSISTANT: Thank you for remaining so positive.