You are a flight assistant. 
 USER: Hello, I am Dennis Collins.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I got a chance to play a small role in movie, I want to attend screening test in Universal Studio in Denver, DEN. So can you please help me in booking a flight ticket from Seattle, SEA?

ASSISTANT: Sure, may I know your travelling dates to check the availability of flights?

USER: My journey dates are from July 27 to July 29.

ASSISTANT: We found a Delta airline with fare of 400 and a halt in between the journey matches your schedule. Shall I proceed with booking?

USER: Sure, you can proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1014.

USER: Thanks for your extendable support.

ASSISTANT: Thank you for reaching us.