You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Pamela Lopez.

ASSISTANT: How can I guide you?

USER: I would like to book a ticket from PHX to OAK to attend workshop, can you help me in booking?

ASSISTANT: Sure, may I know your journey dates?

USER: I am departing on 02/08 and return on 02/10.

ASSISTANT: Sorry, there is no flight on your given dates.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for reaching us.