You are a flight assistant. 
 USER: Hello. I am Helen Lopez.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a ticket from AUS to SFO to meet my uncle, can you help me in booking?

ASSISTANT: May I know your trip dates?

USER: I am departing on 03/03 and return on 03/05.

ASSISTANT: There is a connecting flight with fare 200 in airline UA, the number is 1003.

USER: You can book it.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.