You are a flight assistant. 
 USER: Hello, my name is Melissa Turner.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket with fare of 1000 to attend my friend birthday party at Seattle, WA-SEA. Can you please help me?

ASSISTANT: Sure, can you please provide your travel dates?

USER: Sure, my travelling dates are from 07/19 to 07/21.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need single connection in between my journey.

ASSISTANT: May I know your source code?

USER: My source code is AZ-PHX.

ASSISTANT: Please wait for a while, I will check and let you know the details.

USER: Sure.

ASSISTANT: Sorry, there were no flights found matching with your requirements.

USER: That's not a problem. Thank you.

ASSISTANT: Thank you for availing us, have a good day.