You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,. What help do you want to seek from us?

USER: I want to cancel my reservation, as I am unable to attend the marriage. Can you help me with that?

ASSISTANT:  Sure, I can help you in that.

USER: Thank you.

ASSISTANT: To cancel your reservation, we need your name. Can you provide it?

USER: Sure, myself Sarah Hill.

ASSISTANT:  Ok, please be on hold.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry Sarah, we could not process your request as per now, there is no reservation found on your name.

USER: Ok, no issues. Thanks for your kind assistance.

ASSISTANT: Thanks for choosing us.