You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Dennis Thompson.

ASSISTANT: How can I assist you?

USER: I want to book a ticket from SFO to DCA to meet my uncle, can you help me in booking?

ASSISTANT: Sure, please share your travel dates.

USER: My trip dates are 05/18 to 05/20.

ASSISTANT: The flight 1003 of Spirit airlines is available on your request with a price of 300.

USER: You can book it.

ASSISTANT: Dennis, your reservation has been booked successfully.

USER: Thank you.

ASSISTANT: You are welcome.