You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Helen Hall here.

ASSISTANT: How can I assist you today?

USER: I would like to attend a business meeting in Seattle, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: Sure, I am gleeful to help you out.

USER: Thank you for accepting my request.

ASSISTANT: May I know your airport codes please?

USER: Sure, I want to travel from DFW to SEA.

ASSISTANT: Also, can you share your journey dates please?

USER: I am planning to move on 12/22 and please book my return ticket on 12/24.

ASSISTANT: Ok, give me a minute to check the flights availability for your desired intents.

USER: Ok, take your time.

ASSISTANT: Thank you for your patience, here there is connecting flight available for you and airfare is about 100. Shall I proceed further in booking?

USER: That's fine for me, you can proceed with booking.

ASSISTANT: Your booking has been done for the flight 1017 from Delta airlines.

USER: Thank you for your help in booking of my ticket.

ASSISTANT: You are welcome, thank you for contacting us. Have a great day.