You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Margaret Wright.

ASSISTANT: How can I provide service to you?

USER: Owing to an emergency, I would like to cancel my recent reservation.Can you please help me in cancellation?

ASSISTANT: Sure, please hold on.

USER: Sure.

ASSISTANT: Thanks for holding on, we did not find any reservation with your name.

USER: Ok, no issues thank you for your information.

ASSISTANT: Thanks for contacting us.