You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: Can you help me booking a flight ticket from BOS to PHX?

ASSISTANT: Sure, I will help you with that. Can you please mention your preferable travel dates?

USER: I will start on 05/01 and return on 05/03.

ASSISTANT: May I know your name for further process?

USER: I am Debra Wright.

ASSISTANT: In which class do you want to travel?

USER: I am looking for a economy class.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I want to depart in the afternoon time.

ASSISTANT: Do you have any another specifications?

USER: I need a break in my journey.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.