You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I intend to fly from Philadelphia to participate in a food festival at Phoenix. Can you help me book a flight ticket under the range of 5000?

ASSISTANT: Sure, could you please let me know your planned journey dates to proceed further?

USER: I would like to travel on 04/30 and 05/02.

ASSISTANT: Please mention your source and destination points.

USER: My source is PHL and destination is PHX.

ASSISTANT: Please wait a moment.

USER: OK.

ASSISTANT: We found a Southwest airline matching your essential details with the flight number-1022 and the fare 200.

USER: Book my ticket on the name of Shirley Phillips.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: You're welcome. Happy journey.