You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am frank Collins.

ASSISTANT: How may I guide you today?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you with thta. Please wait for a minute.

USER: Ok, sure I will wait for your response.

ASSISTANT: I am sorry to say that there is no reservation found under your name.

USER: Ok, fine it may went wrong while reserving my ticket.

ASSISTANT: Thank you for contacting us.

USER: Thank you for opting me.