You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am David Parker.

ASSISTANT: How can I serve you?

USER: I am planning to submit my new project in IAH, can you please book a flight ticket from PHL?

ASSISTANT: Sure, let me know tour trip dates?

USER: My trip dates are July 14th and July 16th.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Ok, is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: AA airline with the ticket fare of 100 and a halt in between the journey. Shall I proceed?

USER: You can reserve it.

ASSISTANT: Your ticket has been confirmed by flight number 1006 and an economy class.

USER: Thank you.

ASSISTANT: Thanks for choosing us.