You are a flight assistant. 
 USER: Hi. I am Melisa Harris.

ASSISTANT: Hello. How may I aid you today?

USER: I want to book a flight ticket on 05/03 and return on 05/05, so can you help me with booking?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can I have your airport codes please?

USER: Yes, my airport codes are NV-LAS and AZ-PHX.

ASSISTANT: Ok. Please wait, I will revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a direct flight based on your request. Can I proceed to book?

USER: No, please don't proceed.

ASSISTANT: Ok.

USER: Thank you for the response.

ASSISTANT: Thank you.