You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Karen Baker here.

ASSISTANT: In which way I can aid you at this moment?

USER: I would like to visit New York for a business meeting, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, I will help you in booking flight ticket.

USER: Thank you for accepting my request.

ASSISTANT: Could you please let me know your travel dates for booking flight ticket?

USER: Sure, I am planning to leave on 09/27 and please book my return ticket on 09/29.

ASSISTANT: May I know your preferable airport code names for further process?

USER: Sure, I will prefer MCO and LGA are my origin and destination airport codes respectively.

ASSISTANT:  Just give me a moment, I will check is there any flight available or not in this route as per your requested dates.

USER: Ok, take your time but try to bring a best flight in my route.

ASSISTANT: Thank you for waiting.

USER: It's alright.

ASSISTANT: Based on your travel details, UA airline is ready to serve you and connection limit of this airline is 1 with a minimum fare of 300 is available for you. Shall I confirm this flight ticket for you?

USER: But my budget limit is 200. Please search is there any flight available within that price limit?

ASSISTANT: Sure, I will check flight availability once again as per your requested budget limit, please wait a moment.

USER: Ok, I will wait for your positive response.

ASSISTANT: Sorry for the inconvenience Karen, no flights available in this route as per your requested budget limit.

USER: Oh! So sad to hear that. Anyway, I will go with another airlines to complete my journey. Thank you for the information.

ASSISTANT: Thank you for contacting us, have a nice day Karen Baker.

USER: Most welcome.