You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Anna Martinez.

ASSISTANT: How can I assist you today?

USER: Can you please book a flight ticket from PHX to AUS? As I need to attend a business meeting in Austin.

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Sure, I would like to travel on dates of 10/29 and 10/31.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there is no lights found under your preferable details.

USER: Oh! It is sad to hear. Anyway, I will choose another agency this time to get flight ticket. Thank you for your time.

ASSISTANT: Welcome, have a great day.