You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Susan Parker.

ASSISTANT: How may I aid you today?

USER: Can you help me to book a flight from HOU? Because I am planning for a round trip.

ASSISTANT: Sure, I am happy to help you, please share your travelling dates?

USER: My preferable dates are 11/18 and 11/20.

ASSISTANT: There is a flight in UA airline, can I proceed?

USER: Yes, you can proceed with booking.

ASSISTANT: Your ticket is confirmed by flight number 1018.

USER: Thank you for helping me in booking.

ASSISTANT: It's my pleasure, thank you for reaching us.