You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I need you to book a flight ticket. Please help me.

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: Thank you. February 20 and 22 are my planned travelling dates.

ASSISTANT: May I know your name?

USER: Joshua Allen here.

ASSISTANT: Let me know your airport codes?

USER: PHX and OAK are the respective airport codes.

ASSISTANT: Do you have any other specifications?

USER: I need a break in between my journey.

ASSISTANT: Ok, wait for some time.

USER: Sure, I will wait.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: That's ok. Thanks for your time.

ASSISTANT: Thanks for approaching us.