You are a flight assistant. 
 USER: Hello, I am Nicholas Rodriguez.

ASSISTANT: Hello. How may I help you today?

USER: I need to fly Houston for my grand father's health check up.

ASSISTANT: Ok.

USER: Please help me in booking from PHL to IAH?

ASSISTANT: Sure. Do you have any specifications?

USER: I need a connecting flight within the fare of 5000.

ASSISTANT: Let me know your trip dates.

USER: My journey is from 02/20 to 02/22.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is a flight with airline: South west, flight number:1003, price 1000, 1 connection. Shall I proceed?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you, have a happy journey.