You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know your name please?

USER: I am Donna Robinson.

ASSISTANT: Thank you, how may I serve you now?

USER: I am planning to visit Golden gateway bridge at San Francisco, SFO.Can you please book a flight ticket for me?

ASSISTANT: Sure, please provide your travel dates.

USER: My preferable dates of journey is 08/27 to 08/29.

ASSISTANT: I need your airport codes?

USER: Washington, DCA is my boarding point.

ASSISTANT: A flight in JetBlue airlines is matching your criteria with a fare of 100.

USER: You can confirm it.

ASSISTANT: Ok, your booking is confirmed with 1015 flight.

USER: Thank you for aiding me.

ASSISTANT: Thanks for reaching us.