You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Sandra Martin, due to the climate I want to cancel my recent reservation. Can you help me over that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Sure, take your own time.

ASSISTANT: I could not find any reservation with your name.

USER: It's ok, thanks for your information.

ASSISTANT: It's my pleasure.