You are a flight assistant. 
 USER: Hi, Dorothy Roberts here.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight ticket from IAH to PHL to enjoy Yosemite adventure. Can you help me with that?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my departure and arrival dates are Dec 29 and Dec 31.

ASSISTANT: Do you have any other specifications to be met?

USER: I need a halt.

ASSISTANT: We found departure: IAH 20:00PM Dec, 29 arrival: PHL 18:00PM Dec, 31 airline: Hawaiian Airlines (Hawaiian) flight_number: 1016 class: economy connections: 1 price: 100. Shall I proceed?

USER: Yes you can.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.