You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jason Adams.

ASSISTANT: How may I serve you today?

USER: I want to book a ticket from DCA to DEN, can you help me?

ASSISTANT: Sure, please kindly share your travel dates.

USER: My travel dates are 07/13 and 07/15.

ASSISTANT: Do you need a stopover?

USER: I need a connecting flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know if you want any specific time for your departure and return?

USER: I want to depart in the evening.

ASSISTANT: Do you have any other specifications?

USER: I have provided all my requirements, I am comfortable with any flight.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT:  Thank you for waiting and we have found a flight in an economy class with 1 connection in Delta airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: You can book it.

ASSISTANT: Your booking is done with flight number 1021. Your depart time is 0:00 AM.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.