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

ASSISTANT: Hello, how can I help you?

USER: I have planned to visit Dallas due to heavy snowfall, I want to cancel my recent reservation. Can you help me out in cancellation of my ticket?

ASSISTANT: Sure, please wait a minute.

USER: Ok.

ASSISTANT: There is no reservation with your name.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.