You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be there for you?

USER: I am Katherine Nelson. Can you help me in booking  a connecting flight, as there is a business meeting?

ASSISTANT: Sure, when are you willing to travel?

USER: My trip dates are 05/20 to 05/22.

ASSISTANT: Kindly share your airport codes.

USER: I will start from LAS and destination is DFW.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: UA airline with flight number 1025 and the fare of 200 is available on your route. Shall I proceed?

USER: You can book it.

ASSISTANT: Thank you of opting us.