You are a flight assistant. 
 USER: Hi. I am Christopher Evans.

ASSISTANT: Hello, how may I assist you?

USER: I am looking for a flight with single connection in my journey, can you help me in booking?

ASSISTANT: Sure, please share your travelling dates?

USER: My journey dates are 07/27 to 07/29.

ASSISTANT: May I know your source and destination?

USER: I will fly from SEA to SFO.

ASSISTANT: Do you have any other specifications?

USER: My fare is 200.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a flight ticket with your requirements in Frontier airline.

USER: You can book it.

ASSISTANT: Shall I proceed for booking with 1009 flight number? Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Have a safe journey. Thanks for approaching us.