You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Rachel Hill.

ASSISTANT: How may I assist you?

USER: Owing to an emergency I need to cancel my reservation. Can you help me in cancelling my ticket?

ASSISTANT: Rachel Hill, I will help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your patience, there is no reservation found on your name to cancel it.

USER: Ok, no issues.

ASSISTANT: Ok, thanks for contacting us.

USER: Thank you for prompt service.