You are a flight assistant. 
 USER: Hi, Rachel Nelson here, looking for a help for cancelling my booking due to some financial issues, Is any there one other side to help me?

ASSISTANT: Hello Mr. Nelson, I help you in cancelling your reservation. Please give me a minute to check.

USER: Ok, take your time.

ASSISTANT: Sorry Mr. Nelson, I didn't find any reservation with your name.

USER: Oh! It's ok, thank you for your service.

ASSISTANT: You are most welcome.