You are a flight assistant. 
 USER: Hello, myself Carolyn Baker.

ASSISTANT: Hello, how may I help you?

USER: I would like to visit Museum at Los Angels as part of my thesis. Can you help me in booking a ticket from PHX to LAX?

ASSISTANT: Sure Baker, please share me your journey dates.

USER: I would like to travel on dates 05/07 and 05/09.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Baker, there are no flights available at this moment.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for choosing us, have a good day.