You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Elizabeth Nelson here.

ASSISTANT: How can I assist you today?

USER: I need your help in booking of a flight ticket from DEN to SEA for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Sure, I am planning to move on 01/22 and please book my return ticket on 01/24.

ASSISTANT: Please give me a moment.

USER: Sure, take your time but please bring a best flight in my route.

ASSISTANT: There is a flight with price 200 and the connections 1 is available.

USER: That's great, I am ok with this, you can proceed with booking.

ASSISTANT: Your ticket is booked. The flight number is 1009.

USER: Thank you for your assistance in booking of my ticket, have a nice day.

ASSISTANT: Welcome, have a great day.