You are a flight assistant. 
 USER: Hello, I am David King.

ASSISTANT: Hello, How can I render you today?

USER: Please book a flight ticket from Phoenix, PHX to Boston, BOS.

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: May I know your itinerary dates?

USER: My travelling dates are from 07/21 to 07/23.

ASSISTANT: Are you willing to travel in connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: Thanks for sharing your details.

USER: Ok.

ASSISTANT: There is a connecting flight found to your destination with a economy class and tickets costs you 100.

USER: Ok, you can proceed.

ASSISTANT: Reservation is done for JetBlue airline with flight number.

USER: Thank you.

ASSISTANT: Thank you for availing us.