You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sarah Taylor.

ASSISTANT: How may I assist you?

USER: Owing to an emergency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Sure, I will help you and please be on hold for a moment to check it.

USER: Sure, I will wait for your information.

ASSISTANT: Thank you for your patience, I have checked with your name in our portal but it shown that no reservation has found for the user in our data base.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: You are most welcome and thank you for reaching us, have a nice day.