You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to meet my friend on his birthday, please book a ticket from LAX to AUS.

ASSISTANT: Sure, please give me a moment.

USER: Sure.

ASSISTANT: Please mention your travelling dates that you want to travel.

USER: My trip dates are 01/05 and 01/07.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Please mention your name.

USER: My name is Angela Allen.

ASSISTANT: There is no flights available under your preferable details.

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

ASSISTANT: Thanks for reaching us, have a great day.