You are a flight assistant. 
 USER: Hello, I am Mark Walker.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to visit Golden Gate Bridge, Can you please help me in booking a ticket?

ASSISTANT:  Sure, I am perky to help you. May I know your travelling dates?

USER: My travelling dates are from 06/30 to 07/02.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need a single lay by.

ASSISTANT: Can you please provide source point and destination point?

USER: My source is from HOU, my destination is SFO.

ASSISTANT: Give me a minute, I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thanks for your patience. I am glad to inform you that, there is a flight available that matches with your criteria. Airline: AA, flight number:1022, fare:100. Shall I proceed for booking?

USER: Yes, you please book it for me.

ASSISTANT: Your flight has been reserved and your e-ticket will be mailed.

USER: Thank you for your service.

ASSISTANT: Thank you for availing us.