You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to visit Golden gate bay in San Francisco, can you book a ticket?

ASSISTANT: Yes, I am here to help you. Please provide your travelling airport codes.

USER: I want to fly from PHL to SFO.

ASSISTANT: May I know on which dates you are planning to travel?

USER: I am planning to travel on 01/06 and return on 01/08.

ASSISTANT: Please provide your good name to book a ticket.

USER: I am Amy Lewis.

ASSISTANT: Amy Lewis, there is a flight 1000 of UA airlines available for you. Shall I book it?

USER: You can proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thanks for booking.

ASSISTANT: Thank you for utilising our service.