You are a flight assistant. 
 USER: Hi, I am Gary Evans.

ASSISTANT: Hello, how may I oblige you today?

USER: I have a plan to visit San Francisco. Can you please book me a flight ticket to visit Twin Peaks?

ASSISTANT: Sure, we are mirthful to help you.

USER: Thank you.

ASSISTANT: Help me with the source and destination airport codes?

USER: My source is from Denver, CO - DEN and destination is at San Francisco, CA - SFO.

ASSISTANT: When are you planning to travel?

USER: I want to fly on 08/11 and recur on 08/13.

ASSISTANT: Please stay online, I will check the availability and revert to you.

USER: Sure.

ASSISTANT: We found 1029 Delta airlines with single connection with price 300. Shall I proceed with the booking.

USER: Plaese proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.