You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to flight booking agency.

USER: I am Debra Wilson.

ASSISTANT: How can I assist you today?

USER: Owing to an emergency, I am looking for cancelling of my recent reservation. Can you help me out?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation in our data base.

USER: Sure, take your time.

ASSISTANT: I appreciate your patience. Debra, there is no reservation found under your name.

USER: That's ok. Anyways, thank you for checking.

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