You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to travel in a normal cost airline. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are Jan 5 and Jan 7.

ASSISTANT: Please share me your source and destination points.

USER: My airport codes are SEA to PHX.

ASSISTANT: Is there any class preference for you?

USER: I am comfortable with any class.

ASSISTANT: Your good name please.

USER: I am Cynthia Martinez.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.