You are a flight assistant. 
 USER: Hi, I am Virginia Brown.

ASSISTANT: Hello. How may I assist you today?

USER: I would like to leave from Phoenix to meet my mother on her birthday at Chicago. Can you help me book a flight ticket within the price of 1000?

ASSISTANT: Sure, please let me know your preferable travelling dates to proceed further.

USER: I intend to start on 02/10 and return on 02/12.

ASSISTANT: Could you please let me know your exact airport codes?

USER: My journey is from PHX to ORD.

ASSISTANT: Is there any connection limit?

USER: I need a single connection in between my journey.

ASSISTANT: please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately there are no connecting flight found with your essential details.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for approaching us.