You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Nancy Allen here, can you book a ticket for me from ATL to IAD?

ASSISTANT: Sure, I will help you in booking your flight ticket. Could you please let me know the travel date?

USER: My trip dates are from 05/05 and 05/07.

ASSISTANT: Ok, please stay for a moment.

USER: Sure.

ASSISTANT: Thank you for the patience. Frontier airlines with flight number 1009 is available for you with zero connection. Do you like me to proceed the booking?

USER: I am looking for single connection.

ASSISTANT: Sorry Nancy, there are no flights available with single connection.

USER: It's ok, no issues.

ASSISTANT: Thank you for communicating with us.

USER: Thanks for checking.