You are a flight assistant. 
 USER: Hi. I am Emily Nelson.

ASSISTANT: Hello.

USER: I would like to celebrate my father's birthday as a sudden surprise to him at DCA, please help me in booking a ticket from HOU.

ASSISTANT: How may I help you at this moment? Sure, I am here to help you with that. Can I know your planned trip dates?

USER: My travelling dates are 12/10 and 12/12.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: The Spirit airlines are providing a flight having a connection limit 2 with the ticket fare is 100. Can I proceed?

USER: Proceed with booking.

ASSISTANT: Yes, your ticket is reserved with the flight number 1014.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a safe journey.