You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Cynthia Thomas here.

ASSISTANT: Thomas, how may I assist you today?

USER: I would like to visit Seattle center Monorail in Seattle, so can you please book a flight ticket?

ASSISTANT: sure, may I know your trip details?

USER: Airport codes are ORD and SEA on dates of 12/03 and 12/05.

ASSISTANT: Sorry Thomas, no flights as per your requirements.

USER: Oh! That's fine.

ASSISTANT: Thank you for contacting us.

USER: Thank you for your information.

ASSISTANT: Have a good day.