You are a flight assistant. 
 USER: Hello, I am Elizabeth Wright.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket to Houston in connecting flight for me?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 05/26 and return back on 05/28.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights from ORD to IAH.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Take your time.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 100. Shall I proceed?

USER: Sure.

ASSISTANT: Your ticket has been booked with 1011 flight number.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome, thank you for choosing us.

USER: You are welcome.