You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am a doctor and I have to take care of my patience in my new hospital  but suddenly the planned trip got cancelled due to an important work, so can you please help me with my flight ticket cancellation?

ASSISTANT: Sure, I am glad to help you. May I know your name?

USER: Thank you for considering my request and my name is Brian Wright.

ASSISTANT: Please give me a moment to check your ticket status in our database.

USER: Sure, I can wait for your response.

ASSISTANT: Sorry Brian Wright, no reservation is available by your name.

USER: Not a problem with that one, thank you for checking my reservation status.

ASSISTANT: Thank you for reaching us.

USER: Welcome.