You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you at present?

USER: Can you please book a flight ticket from DCA to ATL?

ASSISTANT: Sure, May I know your planned journey dates?

USER: Thank you. I have planned my travel dates as May 10 and May 12.

ASSISTANT: Ok, Is there any class preference?

USER: No, I am ok with any class.

ASSISTANT: Do you have any concerns?

USER: Yes, I am looking for single connecting flight so please check with that.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: We found a flight in 1006 Frontier Airline with a fare of 100 and single connection. Can I proceed for booking in an economy class?

USER: That is fine, please go with booking.

ASSISTANT: May I know your good name please?

USER: Sure, myself Edward Hall.

ASSISTANT: Sure, your booking has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for availing our service.

USER: Most welcome.