You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sarah Jones here.

ASSISTANT: How may I lend a hand to?

USER: Owing to an emergency I have request you to cancel my reservation. Can you please help me out with that?

ASSISTANT: Jones, I am here to help you. Let me check your reservation status in our database.

USER: Thank you, take your time.

ASSISTANT: Jones sorry for inconvenience, no reservation is found on your name in our database.

USER: Oh! I think the ticket was cancelled by my father. Anyway, thank you for the information.

ASSISTANT: Thank you Jones for contacting our agency.

USER: Welcome.