You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Can you please book the ticket from PHL to SEA? As I'm planning to visit Seattle.

ASSISTANT: Sure, may I know when would you like to travel?

USER: Sure, my planned departure and return travel dates are 4th and 6th of May.

ASSISTANT: Please provide your requirements.

USER: Yes, I prefer single connected flight.

ASSISTANT: Can you please share me your name?

USER: Sure, my name is Shirley Harris.

ASSISTANT: We found a flight with an airline Frontier of flight 1009 in an economy class with lay by. Can I proceed?

USER: That's fine for me, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you so much for your help.

ASSISTANT: Thank you.