You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Steven White. I want to book a ticket from HOU to PHL, can you help me in booking a ticket?

ASSISTANT: Ok, please share your journey dates.

USER: My journey dates are from 02/26 to 02/28.

ASSISTANT: May I know your price limit and connection limit?

USER: My price limit is 500. I need a halt in my journey.

ASSISTANT: Ok, please wait. We are happy to say that, we found a flight on Delta airline, flight number 1011 with the fare of 100.

USER: It's perfect, please book it.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you.