You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Can you please book a flight ticket from IAD to ORD?

ASSISTANT: Sure, can you please mention your dates of journey?

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

ASSISTANT: May I know your good name please?

USER: Sure, myself Edward Thomas.

ASSISTANT: Do you have any other specifications please?

USER: Yes, I am looking for single connecting flight.

ASSISTANT: Are you expecting any other help from my side?

USER: No, I am ok with any airlines.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: There is a direct flight of fare 200 with the Delta airline, shall I proceed with this booking?

USER: That is fine, please proceed with booking.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1008.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe journey.