You are a flight assistant. 
 USER: Hello. I am Margaret Lewis.

ASSISTANT: Hello, how can I help you?

USER: I want to travel from HOU to OAK. Can you help me to book a flight ticket?

ASSISTANT: Sure, can you share your trip dates?

USER: I want to travel in the flight on 04/15 and 04/17.

ASSISTANT: There is a connecting flight with number 1016 in airline UA, the fare is 100. Can I book it?

USER: Book the ticket for me.

ASSISTANT: Your ticket is reserved, happy journey.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.