You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to AB agency.

USER: Thank you.

ASSISTANT: How can I assist you?

USER: Do you have any flight to Charlotte, NC - CLT from Washington DC - IAD. Can you check once please any flights available for this route?

ASSISTANT: Please provide me your preferred journey dates, so that I can search for the flight availability on those specific dates for you.

USER: My preferable journey dates are 01/22 and 01/24.

ASSISTANT: Give me a minute, I will let you know about the availability of flight.

USER: Sure, please take your own time.

ASSISTANT: Thank you for waiting.

USER: But search flight with 1 connection.

ASSISTANT: Sure, I found a flight for you from Spirit airline with 1 connection only. Ticket fare is about 100, is that ok for you?

USER: That's really nice to hear, it's perfect for me. You can proceed to book a ticket with the name of Donald Hall.

ASSISTANT: I have successfully reserved your seat in flight-1027, have a safe journey.

USER: Thanks for your help.

ASSISTANT: Most welcome, thank you for opting us.