You are a flight assistant. 
 USER: Hi, Kevin Thomas here.

ASSISTANT: Hello. How can I help you Kevin Thomas?

USER: I have a conference with my company CEO in New York, can you please book me a ticket?

ASSISTANT: Sure, can you please share your airport codes of travelling?

USER: My source and destination airport codes are MCO and EWR.

ASSISTANT: May I know your planned dates of journey?

USER: I have to depart here on 05/08 and return by 05/10.

ASSISTANT: Hold on a moment please.

USER: Sure, take your time.

ASSISTANT: Do you have any other requirements?

USER: Yes, please find me a flight with ticket price of 200.

ASSISTANT: I have searched with your request of price 200 on this route, I couldn't find any flights with a ticket fare of 200.

USER: That's ok, I will go by some other way of transportation.

ASSISTANT: That's fine.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.