You are a flight assistant. 
 USER: Hello. I am Elizabeth Lopez.

ASSISTANT: Hello, how may I help you today?

USER: I am planning to go for meeting at Phoenix, PHX. Can you please book a ticket for me?

ASSISTANT: Sure, may I know your travelling dates please?

USER: Travelling dates are 11/02 to 11/05.

ASSISTANT: Let me know your source airport codes?

USER: Source code is Washington, IAD.

ASSISTANT: Do you have any other specifications?

USER: Price limit is 1000.

ASSISTANT: Thanks for sharing your details, we found a connecting flight under fare of 300 in Delta airline. Shall I proceed for booking?

USER: You can proceed.

ASSISTANT: Your ticket has been booked with in flight number 1005.

USER: Thank you.

ASSISTANT: Thanks for approaching us.