You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Emma Hill.

ASSISTANT: How may I help you?

USER: Can you please help me in booking the ticket from IAD to DEN?

ASSISTANT: Ok, may I know your travelling dates?

USER: My travelling dates are 04/13 and 04/15.

ASSISTANT: May I know your preferences?

USER:    I need a connecting flight.

ASSISTANT: There is a connecting flight-1026 with price 100, is it fine for you?

USER: Yes, please proceed with booking.

ASSISTANT: Ok, booking is confirmed with the Southwest airlines.

USER: Thank you.

ASSISTANT: Thanks for contacting us.