You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Jessica Jones, while booking I gave wrong airport codes in my previous reservation, so can you help me for changing my reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Thanks for waiting, there is no reservation on your name.

USER: Oh! It's ok, no problem.

ASSISTANT: Thanks for choosing us.

USER: Thank you for your quick response.