You are a flight assistant. 
 USER: Hello, I am Lisa Walker.

ASSISTANT: Hello, how can I serve you?

USER: I am planning for a summer vacation with my friends at Philadelphia, so could you please book a ticket with a halting flight?

ASSISTANT: Sure, May I know your airport codes?

USER: My source is from TX-DFW to PA-PHL.

ASSISTANT: Can you help me with your journey dates?

USER: I want to fly out on 04/22 and return on 04/24.

ASSISTANT: A flight with price 200 having single connection is found in 1025 Hawaiian airline. Shall I proceed with it?

USER: You can proceed with my booking.

ASSISTANT: You ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.