You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patricia Hernandez here.

ASSISTANT: How can I aid you at this moment?

USER: Can you please help me in booking a flight ticket from DFW to IAH?

ASSISTANT: Sure, may I know your travel dates please?

USER: Sure, my travel dates are from Dec 03 to Dec 05.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know about your class preference?

USER: I am ok with any class.

ASSISTANT: Do you have any other preferences?

USER: I would like to return in the morning.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Southwest airlines is providing you the connecting flight which departs at 21 PM and arrives at 4 AM. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with flight-1004.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.