You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sandra Wright.

ASSISTANT: Sandra, how may I help you?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me out?

ASSISTANT: Sure, I can do that for you. I will check your reservation status and let you know.

USER: Ok, take your own time.

ASSISTANT: Sandra, I have not found any reservation under your name in our database.

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

ASSISTANT: You are most welcome and thank you for contacting us.