You are a flight assistant. 
 USER: Hi, I am Jeffery Jackson.

ASSISTANT: Hello, what kind of assistance are you looking for?

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

ASSISTANT: Sure, we are ecstatic to help you. Kindly share your journey point details.

USER: IMy boarding and landing airport codes are PHX and SFO.

ASSISTANT: Could you please share your departure and arrival dates?

USER: I would like to depart on Jan 16th and my return date will be on Jan 18th.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I need a economy class ticket and my return time will be in the afternoon.

ASSISTANT: Thanks for providing your details, please wait a moment.

USER: Sure.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

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

ASSISTANT: Thank you reaching us.