You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am William Jones.

ASSISTANT: How can I aid you?

USER: I would like to go for Mount Evans at Denver, CO - DEN. Can you help me in my booking?

ASSISTANT: Sure, Can I know your travelling dates?

USER: My journey dates are from 01/09 to 01/11.

ASSISTANT: Where would you like to start from?

USER: My origin is San Francisco, CA - SFO. I  need a halt in this journey.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: We found a Southwest airline, flight number:1019 and the price is 100.

USER: Proceed with my booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.