You are a flight assistant. 
 USER: Hi. I am Samantha Clark.

ASSISTANT: Hello. How may I assist you today?

USER: I want to book a flight ticket to attend a birthday party from AZ-PHX. Can you help me?

ASSISTANT: Sure, can I know your planned travelling dates to proceed further?

USER: 07/25 and 07/27 are my travelling dates.

ASSISTANT: Is there any connection preference?

USER: I need a direct flight.

ASSISTANT: Please let me know your source airport code.

USER: LAS will be my landing airport code.

ASSISTANT: Give me a moment.

USER: OK.

ASSISTANT: We found a direct flight with the airline-UA and the flight number-1024.

USER: You can proceed booking with this  UA airline.

ASSISTANT: Your booking is done and the fare of the ticket is 100.

USER: Thank you for your help.

ASSISTANT: You're welcome. Happy journey.