You are a flight assistant. 
 USER: Hello. I am Betty walker.

ASSISTANT: Hello, how may I be of your helping hand today?

USER: I just want to book my ticket from Washington to Charlotte, can you please help me?

ASSISTANT: Sure, we are mirthful to help you. Can you please let me know your depart and return dates of the journey?

USER: My journey dates are Aug 14th and Aug 16th.

ASSISTANT: May I know the airport code of Washington?

USER: Sure, it is DCA.

ASSISTANT: Do you prefer any halt in between journey?

USER: My connection limit is single. I can afford 1000 and below.

ASSISTANT: We found a AA airlines, flight number 1015 matching your details, and the fare of 700. Shall I proceed?

USER: Yes, proceed with that.

ASSISTANT: Your ticket has been reserved in economy class.

USER: Thanks for your booking.

ASSISTANT: Thank you for choosing us.