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

ASSISTANT: Hello, what can I do for you?

USER: I need to book a ticket to meet my friend in Stadium which is only one in Houston HOU.

ASSISTANT: Sure, may I know your source point?

USER: Could you please help me in booking a ticket from BOS?

ASSISTANT: Sure, I will help you. Let me know your journey dates.

USER: My travelling dates are 06/03 and return on 06/05.

ASSISTANT: Sorry, no flights were found based on your schedule.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for picking us.