You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Jessica Brown.

ASSISTANT: In what way can I be at your service today?

USER: As my manager did not approve my leave, I want to cancel my recent reservation. Can you please help me out with this?

ASSISTANT: Sure, I am mirthful to help you.

USER: Thank you.

ASSISTANT: Please hold on for a moment. Let me check in our previous records.

USER: Ok, I will be waiting for your response.

ASSISTANT: Thank you for waiting. Sorry to say that there is no reservation found on your name.

USER: That's fine, may be my friend has cancelled my reservation and I will check with her.

ASSISTANT: Ok, sure come back to us after asking your friend. We are at your service anytime.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for reaching us, have a good day.