You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Emily Thompson.

ASSISTANT: Emily, how may I guide you?

USER: I would like to visit Golden Gate Bridge at San Francisco with my partner, please help me in booking a ticket from DCA to SFO.

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: My trip dates are 05/17 to 05/19.

ASSISTANT: Just a moment.

USER: Sure.

ASSISTANT: There is a flight with Spirit airlines and the ticket fare is 100 only. Shall I proceed for booking?

USER: You can reserve it.

ASSISTANT: Emily, your ticket is booked with the flight-1009.

USER: Thank you for helping.

ASSISTANT: You are most welcome.