You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I have to meet my client in Charlotte, can you please book a flight ticket from IAD to CLT?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: Thank you. I am willing to travel in the dates of Jan 16 and Jan 18.

ASSISTANT: Ok, please let me know your preferable class to get best flight for you.

USER: No but I would like to travel in a connecting flight.

ASSISTANT: Do you  have any other specifications?

USER: No, I didn't have any more specifications.

ASSISTANT: Can I have your good name  please?

USER: My name is Christopher Edwards.

ASSISTANT: Spirit airlines running a flight in your route with connection 1 and the ticket fare is 100 in economy class. Shall I proceed with booking?

USER: Yes, I am comfortable to travel in this airlines. Please proceed to book the ticket.

ASSISTANT: Ok, your ticket booking has  done and the flight number is 1020.

USER: I am happy for your help. Thank you so much.

ASSISTANT: Thank you for choosing us, have a great journey.