You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Joseph Martin.

ASSISTANT: Ok Martin, what can I do for you?

USER: I want to book a ticket from PHL on 06/24 to DEN on 06/26, could you please help me?

ASSISTANT: Ok, please wait a moment. Do you have any other requirements?

USER: Make sure that price limit should not exceed 200 with 1 connection.

ASSISTANT: Ok, there is a flight airlines Southwest which is matching to your requirements. Shall I proceed to book the ticket?

USER: Please proceed.

ASSISTANT: Ok, your ticket is booked to the flight number 1004.

USER: Thank you for the help.

ASSISTANT: You are welcome. Thank you for reaching us Martin. Have a safe journey.