You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be of your assistance?

USER: I would like to meet my business partner at Dallas, please help me in booking a ticket from ATL to DFW.

ASSISTANT: Sure, let me know your name.

USER: My name is Melissa Carter.

ASSISTANT: May I know your travelling dates?

USER: My planned journey dates are on Jan 18 and Jan 20.

ASSISTANT: How much can you afford for the ticket?

USER: I can afford 200 for this trip.

ASSISTANT: Please give me a minute.

USER: Sure, take your time.

ASSISTANT: There is no flight available on your preferable dates.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thanks for reaching us.