You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Alexander Lopez, planning to meet my childhood friend in Chicago, IL-ORD.

ASSISTANT: That's nice. Can I know your travelling dates?

USER: So please help me in searching a flight ticket.

ASSISTANT: Yes.

USER: My travel dates are 02/25 and 02/27.

ASSISTANT: Ok, can I know your source airport code?

USER: My source airport is Boston, MA- BOS.

ASSISTANT: Ok, give me a moment.

USER: Sure, take your time.

ASSISTANT: I have found a flight for you with a price of 100 and a connection of 1. Can I book the ticket?

USER: Please book my ticket to this flight.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: You are welcome.