You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Nancy Johnson. I want to book a ticket form IAD to SFO to meet my uncle, can you help me in booking?

ASSISTANT: Sure, may I know your journey dates?

USER: I am departing on 09/15 and return on 09/17.

ASSISTANT: There is a connecting flight with number 1009 in airline Spirit, the fare is 100.

USER: Please proceed for booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.