You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Andrew Baker planning to visit a Space needle in Seattle, could you please book a flight ticket within the fare of 200?

ASSISTANT: Sure, could you please share your airport codes?

USER: The airport codes are PHL and SEA.

ASSISTANT: Ok, please provide your travel dates.

USER: My travel dates are 02/06 and 02/08. I am in need of connecting flight.

ASSISTANT: Sorry to say, there are no flights found with your requirements.

USER: Ok, it was not a problem. Thank you for the information.

ASSISTANT: Thanks for reaching us. Have a nice day!.