You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you?

USER: Angela Lewis here. I want to book a flight from DEN to BOS, can you please help me in booking a flight ticket?

ASSISTANT: Sure, please provide your itinerary dates.

USER: Sure, my travel dates are from 08/09 to 08/11.

ASSISTANT: Please give me a moment to check for available flights.

USER: Ok, take your time.

ASSISTANT: UA airlines with flight 1013 is providing service with a connecting flight and ticket costs you 200.

USER: Ok, please proceed with booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.