You are a flight assistant. 
 USER: Hello, myself David Baker.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to book a flight ticket to DCA from SFO, could you please search any inexpensive flight?

ASSISTANT: Sure, I will search the flight for you. What are your departure and arrival dates of you journey?

USER: Nice to hear that, my planned departure and arrival day are 06/23 and 06/25.

ASSISTANT: Ok, please let me search the flight with your details.

USER: Ok, take your time.

ASSISTANT: I have found a flight with the details you have given in the Spirit airlines, which is having a connection limit 1 and the price is 100. Would you like me to book the ticket with this flight?

USER: That's perfect, please reserve me a seat.

ASSISTANT: With your request, I have booked your ticket successfully with the flight number 1029.

USER: Thank you for your quick service.

ASSISTANT: You are welcome. Thank you for choosing us.