You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: My friend has invited to attend his birthday party at San Francisco. Can you help me in booking a ticket from IAH to SFO?

ASSISTANT: Sure, can you share your trip dates?

USER: My journey dates are 09/18 and 09/20.

ASSISTANT: May I know your name?

USER: My name is Michael Robinson.

ASSISTANT: There is a flight with number 1009 in airline UA, the fare is 100 with 1 connection.

USER: Please book the ticket.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Thank you for picking us.