You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you at this moment?

USER: Can you please book a flight ticket from DCA to HOU?

ASSISTANT: Sure, can you please share your journey dates?

USER: My journey dates are Mar 3rd and Mar 5th.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Are there any more specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: Charles Hall.

ASSISTANT: We found a Spirit airlines, flight number 1004, and the fare of 300 in economy class. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved with connecting flight.

USER: Thank you.

ASSISTANT: Thank you for approaching us.