You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I help you?

USER: I need to travel IAD and OAK, can you reserve flight ticket?

ASSISTANT: Sure, please share your planned travel dates?

USER: My travelling dates are Dec,24 and Dec,26.

ASSISTANT: Do you have any connection limit?

USER: Yes, I prefer one connecting flight.

ASSISTANT: Any other preferences?

USER: My return time should be in the morning.

ASSISTANT: Can I have your name please?

USER: Myself Thomas Gonzalez.

ASSISTANT: Spirit airlines flight 1025 available with connection and fare is 100 which returns in the morning 5.00 hours, shall I confirm this economy class flight?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you for reserving my flight ticket.

ASSISTANT: Thank you for opting us.