You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to book a ticket from IAH to SFO, can you please help me out?

ASSISTANT: Sure, may I know your trip dates?

USER: I am travelling on these dates Feb 2nd and 4th.

ASSISTANT: Do you need any connections between your trip?

USER: I don't have any preferences and connection limit.

ASSISTANT: May I know your name.

USER: Mary Adams here.

ASSISTANT: Do you need business class economy class?

USER: I don't have any other preferences.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We have a direct flight operated by Frontier Airlines with a fare of 200. Shall I book your seat in this flight-1019?

USER: Ok, you can proceed.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you for your services.

ASSISTANT: Thank you for contacting us.