You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Cynthia Miller.

ASSISTANT: How may I assist you now?

USER: As I am a doctor I need to fly with the direct flight to Orlando to treat an emergency case, can you help me with the booking?

ASSISTANT: Cynthia Miller, may I know your travelling dates?

USER: I intend to start on Feb 15th and my return date will be on Feb 17th.

ASSISTANT: What are your desired airport codes?

USER: My airport code are from CLT-MCO.

ASSISTANT: Sorry to say, there is no flight available for you.

USER: No issues, I'll choose any alternative to reach my destination. Thank you for your information.

ASSISTANT: Thank you for choosing us.