You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight ticket from SFO to EWR. Could you help me in booking?

ASSISTANT: Sure, I will help you. Can you please  share me your travelling dates?

USER: My travelling dates are Jan,25 and Jan,27.

ASSISTANT: Ok, please share me your name.

USER: Myself Rachel Miller.

ASSISTANT: Ok, do you have any connection limit?

USER: I prefer single connecting flight.

ASSISTANT: Sorry, no flights are available on your route.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.