You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me in booking a normal-cost airline to reach Charlotte?

ASSISTANT: Sure, I am here to assist you. Please may I know your dates of journey you have planned as I need to check?

USER: Sure, my trip dates are on 5th and 7th of Feb month.

ASSISTANT: Please can I know the airport codes of your journey?

USER: My airport codes are ORD - CLT.

ASSISTANT: Ok, please let me know if your have specification.

USER: I need a flight in economy class.

ASSISTANT: Ok, please can you wait a moment while I check?

USER: Make sure that my return time is evening.

ASSISTANT: May I know your name?

USER: Sure, my name is Mary Baker.

ASSISTANT: Sorry Mary Baker, there is no flight ticket available at your location to book.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing our agency.