You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to travel from IAH to DCA. Can you help me to book a flight ticket?

ASSISTANT: Can you share your trip dates?

USER: I want to travel in the flight on Mar 23 and Mar 25.

ASSISTANT: Do you need any connections?

USER: I want to travel in a connecting flight.

ASSISTANT: Are there any other preferences?

USER: No.

ASSISTANT: May I now your name?

USER: Timothy Scott.

ASSISTANT: Connecting flight number 1001 with price 100 in economy class is available. Is it ok?

USER: Proceed to booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.