You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me with booking a flight ticket from IAH to OAK?

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are Aug 21 and 23.

ASSISTANT: May I know your name?

USER: My name is David Smith.

ASSISTANT: Do you need any connections between your trip?

USER: I need a connecting flight.

ASSISTANT: Which type of class are you comfortable with?

USER: I am comfortable with any class.

ASSISTANT: Is there any other specifications required?

USER: No.

ASSISTANT: As per your requirements Spirit airlines, flight number:1004 is going on your way with single connection and price:200. Is that sounds good?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been booked successfully.

USER: Thank you.

ASSISTANT: Thank you for contacting us.