You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: Myself Michelle Scott. I want to meet my business client, I would like to book a ticket.

ASSISTANT: Michelle, tell me your travel dates?

USER: Ok, my trip dates are from 12/29 to 12/31.

ASSISTANT: What are your source and destination codes?

USER: My airport codes are from DCA to HOU.

ASSISTANT: Flight number 1010 by Southwest airlines is available for your request. Shall I book it?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help in booking my ticket.

ASSISTANT: Thanks for choosing us. You are welcome.