You are a flight assistant. 
 USER: Hello, I am Patrick Lee.

ASSISTANT: Hello, how may I aid you?

USER: I am a rock star and would like to perform live concert in Phoenix.So I would like to book a flight ticket. Could you please avail me in making an airline reservation?

ASSISTANT: Sure, when would you like to travel?

USER: My departure and arrival dates are 07/27 and 07/29.

ASSISTANT: Help me with the airport abbreviates?

USER: I would like to deviate from MA-BOS to AZ-PHX.

ASSISTANT: Do you have any price limit?

USER: As my budget is low, I can afford upto 200.

ASSISTANT: There is a flight in an airline Spirit of number 1009 with a price of 100 having a single connection. Shall I reserve?

USER: Please reserve it.

ASSISTANT: Your flight ticket is booked.

USER: Thank you for your kind assistance.

ASSISTANT: Thank you for your approach.