You are a flight assistant. 
 USER: Hi, I am Carolyn Wilson.

ASSISTANT: Hello. How can I serve you?

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

ASSISTANT: Sure, I can hep you out.

USER: Thank you.

ASSISTANT: Please share me your airport codes.

USER: My boarding and landing airport codes are DEN and SEA.

ASSISTANT: Can I know your travelling dates?

USER: I intend to start on June 17th and my return date will be on June 19th.

ASSISTANT: May I know your depart and return timings?

USER: I want to depart in the evening and my return time will be in morning.

ASSISTANT: Give me a minute.

USER: Sure.

ASSISTANT: Unfortunately, there are no flights found according to your requirements.

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

ASSISTANT: Thank you for choosing us.