You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. What can I do for you now?

USER: Mary Jackson here. I am participating in a New York marathon so, can you please book a flight ticket from San Francisco?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Will you share me your airport codes?

USER: My journey airport codes are SFO and LGA.

ASSISTANT: Help me with your journey dates please.

USER: I want to travel on 04/09 and return on 04/11.

ASSISTANT: Do you have any connection limit?

USER: I need a way station in between my journey.

ASSISTANT: You have a Delta airline of price 100 with 1 connection. Of 1017 flight.

USER: Ok, proceed with the booking.

ASSISTANT: Ok, ticket is reserved.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.