You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in booking a flight ticket from Houston, HOU to Philadelphia, PHL?

ASSISTANT: Sure, when are you willing to travel?

USER: My journey dates are from June 09 to June 11.

ASSISTANT: May I know your name please?

USER: My name is John Evans.

ASSISTANT: Do you have any preferences for this trip?

USER: I need a way station in between my journey.

ASSISTANT: We found an airline: Delta, flight number: 1012 and price is 100 with one connection in an economy class. Shall I proceed to book?

USER: Sure, you can proceed for booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you for reaching us.