You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in booking my flight ticket from IAD to HOU?

ASSISTANT: Can you share your trip dates?

USER: My planned travel dates are May 25-27.

ASSISTANT: Do you need any connections?

USER: I prefer a connecting flight.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Dorothy Adams.

ASSISTANT: Connecting flight number 1021 with price 200 in economy class is available. Is it ok for you?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.