You are a flight assistant. 
 USER: Hello, I am Pamela Green.

ASSISTANT: Hello, How can I aid you?

USER: Can you please help me to book a flight ticket from IAD to CLT?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travelling dates are June 1 to June 3.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection of flight.

ASSISTANT: Is there any class preference?

USER: No, I am comfortable with any class.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I would like to depart in the evening.

ASSISTANT: Ok, we found a connecting flight 1005 in Southwest airlines which departs in the evening time 20:00PM having price 100, Shall I proceed?

USER: Ok, please proceed to book.

ASSISTANT: Your ticket has been reserved.

USER: Thanks for your booking.

ASSISTANT: Thank you.