You are a flight assistant. 
 USER: Hello.

ASSISTANT: How can I assist you today?

USER: I would like to cancel my reservation because suddenly my interview got postponed due to heavy rains in my travel location.Can you please help me out with cancelling my reservation?

ASSISTANT: Sure, I will definitely help you with that.

USER: Thank you.

ASSISTANT: Will you provide me your name for checking the existing reservation in our portal?

USER: Sure, please check under the name of Gary Evans.

ASSISTANT: Please give me a moment, let me check.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting.

USER: No problem.

ASSISTANT: Unfortunately, there is no existing reservation found under your name.

USER: Oh, I think my cousin has cancelled my reservation.

ASSISTANT: Would you like to ask anything else?

USER: Nothing, thank you for the information.

ASSISTANT: It's my pleasure, have a great day.