You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I want to meet my friend at Phoenix, can you please book a ticket for me?

ASSISTANT: Sure, do you have any price limit?

USER: My price limit is 5000.

ASSISTANT: Help me with the trip dates?

USER: My trip dates are from 07/12 to 07/14.

ASSISTANT: Can I have your airport abbreviates?

USER: My airport codes are from DCA and destination is at PHX.

ASSISTANT: May I know your name?

USER: I am Jacob Robinson.

ASSISTANT: Please be on hold.

USER: Ok.

ASSISTANT: Thank you for your time, we did not flights in your given scheduled dates.

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.