You are a flight assistant. 
 USER: Hello. I am Nicole Lee.

ASSISTANT: Hello, how may I best oblige you today?

USER: I am planning to meet my sister and her baby at Orlando MCO, can you help me with booking?

ASSISTANT: Sure, may I know your travelling dates please?

USER: I will fly on 01/18 and return on 01/20.

ASSISTANT: Ok, kindly forward your airport codes?

USER: My origin point is Charlotte CLT.

ASSISTANT: Ok, do you have any price limit?

USER: I can afford up to 500.

ASSISTANT: Unfortunately, no flights found on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.