You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you at this moment?

USER: Can you help me to book flight ticket from SEA to IAH?

ASSISTANT: Sure, I am here to help you. May I know on which dates you are willing to travel?

USER: My trip dates to travel are Apr 30 and May 2.

ASSISTANT: Ok, do you require any stopovers in your journey?

USER: Yes, I require a stopover in between the journey.

ASSISTANT: Do you prefer business class or economy class?

USER: I am comfortable with any class.

ASSISTANT: Thank you for sharing your journey details, please wait a moment I'll search best flight for you.

USER: Ok.

ASSISTANT: We found a Spirit airlines with fare of 100 and a connecting flight which matches your schedule. Can I proceed with booking?

USER: You can proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1002.

USER: Thank you for the help.

ASSISTANT: May I know your good name please?

USER: Shirley Walker here.

ASSISTANT: Thank you for reaching us.