You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to visit Museum of Fine Arts at Houston, can you find me a ticket please?

ASSISTANT: Sure, can I know the travel dates please?

USER: My preferable travelling dates are from 10/21 to 10/23.

ASSISTANT: Can you share the airport codes please?

USER: My origin airport code is DCA and my destination airport code is IAH.

ASSISTANT: Ok, wait a moment please.

USER: Sure, take your own time.

ASSISTANT: There is a flight with price 100 in AA airline, shall I book it?

USER: Please proceed the ticket booking with my name John Young.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for booking my ticket.

ASSISTANT: You are welcome.