You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I need you to book a flight ticket from PHX to ORD, please help me.

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: January 05 and 07, are my planned travelling dates.

ASSISTANT: Ok, do you need any break in between the journey?

USER: I need a break in between my journey.

ASSISTANT: Please share your specifications.

USER: I wish to depart in the afternoon.

ASSISTANT: May I know your name please?

USER: Dennis Mitchell here.

ASSISTANT: Ok, please stand by.

USER: Sure, I will wait.

ASSISTANT: Thank you for your time, sorry no flights found with your details.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.