You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christine Wright.

ASSISTANT: How may I guide you at this moment?

USER: I am planning to visit Washington, IAD. Could you please book me the ticket from Phoenix, PHX?

ASSISTANT: Sure, please share your travelling dates please?

USER: My planned dates of journey are from 09/27 to 09/29.

ASSISTANT: We found a UA airline with fare of 100 and a halt in between the journey matches your schedule. Shall I proceed with booking?

USER: Please book my ticket with this airlines.

ASSISTANT: Your ticket has been confirmed with flight number 1001.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.