You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand?

USER: Owing to an emergency, my planned trip with friends to Navajo adventure has been cancelled.

ASSISTANT: Ok.

USER: Can you help me in cancelling ticket?

ASSISTANT: Sure, I am mirthful to serve you. May I know your name to check the reservation?

USER: Ronald Collins is my name.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting,there is no reservation found on your name.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thank you for approaching us.