You are a flight assistant. 
 USER: Hello, I am Betty Wright.

ASSISTANT: Hello. How can I serve you?

USER: I am planning to visit cable car museum in San Francisco, can you please help me to book a flight ticket?

ASSISTANT: Sure. May I know your travelling dates?

USER: My journey dates are 06/14 to 06/16.

ASSISTANT: Can you share me your airport codes?

USER: I need to fly out from DFW to SFO.

ASSISTANT: Do you have any preferences?

USER: I need a halt with fare 500.

ASSISTANT: There is a flight 1002 in UA airline and price 200 with a connection.

USER: Ok, book the ticket.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your help.

ASSISTANT: Thank you.