You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Andrew Lopez. I have planned a family tour  at Phoenix, AZ - PHX. Can you please book a ticket with a price limit of 5000?

ASSISTANT: Sure, please provide me your travel dates.

USER: I want to board on 12/15 and return on 12/17.

ASSISTANT: Can I know your origin?

USER: My source is Boston, MA - BOS. I need one connection.

ASSISTANT: Please wait for a moment, I will check and let you know the availability of the flight.

USER: Ok.

ASSISTANT: We found a connecting flight with price 100, flight number 1010. Shall I make the reservation with UA airline?

USER: Yes, you can.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your response.

ASSISTANT: Thank you for choosing us.