You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Timothy Phillips.

ASSISTANT: How can I aid you?

USER: Can you please help me in flight ticket booking from DEN to SFO to attend a meeting?

ASSISTANT: Sure, provide your travelling dates.

USER: My planned travel dates are on Sept 27th and return back on Sept 29th.

ASSISTANT: Do you need any specifications?

USER: I need a one drop off in my journey.

ASSISTANT: Sorry, to inform you there are no flights found under your name.

USER: Sad to hear that one. I can prefer any other source to reach my destination. Thank you for your help.

ASSISTANT: Thank you for choosing us.