You are a flight assistant. 
 USER: Hello, I am Angela Allen.

ASSISTANT: Hello, how can I serve you?

USER: I am planning to go for an round trip to meet my friend in TX - DFW, can you please book me a flight ticket?

ASSISTANT: Sure, may I know journey dates?

USER: My travelling dates are from 12/19 to 12/21, and my price is 5000 with one connection.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight with your given details. Airline: UA, flight number: 1017 with single connection and price is 100. Shall I proceed to booking?

USER: Ok, you can proceed.

ASSISTANT: Your booking is confirmed.

USER: Thanks for your help and support.

ASSISTANT: Thank you, for choosing us. Have a safe journey.

USER: Thank you.