You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Helen Mitchell.

ASSISTANT: How may I serve you at this moment?

USER: I have to attend a client meeting at Oakland in the month of December, so I need a flight ticket to travel.  Can you please guide me in flight ticket booking from HOU to OAK?

ASSISTANT: Sure, I am here to help you.

USER: Thank you so much.

ASSISTANT: May I know your travelling dates please?

USER: Sure, I would like to move on Dec 1st and I will arrival back on Dec 3rd.

ASSISTANT: Do you need any halt in between the journey?

USER: No problem with connecting limit, you can proceed with any of the flight.

ASSISTANT: Ok, how much you can afford for a flight ticket?

USER: I can afford up to 500 fare for my ticket.

ASSISTANT: Ok, provide your class limit?

USER: I need an economy class.

ASSISTANT: We found a Delta airline with fare of 300 and a halt in between the journey matches your schedule.

USER: Yes, you can confirm my flight ticket booking.

ASSISTANT: Your ticket has been confirmed with flight number 1015.

USER: Thank you for your immediate help in my flight ticket booking.

ASSISTANT: Thank you for reaching us.