You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Owing to an emergency, I would like to cancel my existing reservation.Can you please help me with that?

ASSISTANT: Sure, I'll help you. Can you tell me your name?

USER: Sure, my name is Edward Baker.

ASSISTANT: Ok. Edward, there is no reservation with your name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you, have a good day.

USER: Welcome.